Nasal mask assembly



FIG. 1 is a perspective view of a nasal mask assembly showing ourdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of portions of the nasal mask assembly isincluded for the purpose of illustrating an internal boundary of thedesign, with lines themselves and the area within, forming no part ofthe claimed design.

CLAIM The ornamental design for a nasal mask assembly, as shown anddescribed.